Patents by Inventor John B. Kenworthy

John B. Kenworthy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Baled hay loading and transport device
    Patent number: 4040534
    Abstract: A vertically positioned frame member is connected to the tractor lift arms and to a hydraulic stabilizer arm. A hay-carrying arm is pivotally connected to the frame and includes a trio of rearwardly extending hay-engaging fingers. The hydraulic cylinder extends from the frame to the hay-carrying arm to raise and lower the hay-carrying arm. The hydraulic stabilizer arm allows for tilting of the frame and the bale of hay for loading and unloading.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: August 9, 1977
    Assignee: Hay Handling Equipment Company
    Inventor: John B. Kenworthy
  • Baled hay loading and transport device
    Patent number: 4027773
    Abstract: A hay carrying pivotal arm is pivotally connected to a frame carried on the lift arms and stabilizer arm of a tractor having a three-point hitch. A lifting lever arm is connected to the hay-carrying arm and extends in the opposite direction with an anchor chain being connected to the drawbar of the tractor such that as the frame is raised by operation of the tractor lift arms the hay-carrying arm will be caused to pivot upwardly.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: June 7, 1977
    Inventor: John B. Kenworthy